Description

Yanmar KMH50A-3 RR 1.67 for 4LV Series (M-Shift) – KMH50A-3 167 4LV is an angle reduction gear unit engineered for Yanmar 4LV series marine diesel engines equipped with mechanical (M-Shift) transmission, providing a 1.67:1 reduction ratio in a right-hand (RR) output rotation. This OEM Yanmar marine propulsion component is intended for applications where a matched angle gear is required to transfer torque from the engine through the marine gearbox to the propeller shaft in sailboats and powerboats.

Designed to interface with compatible shaft-driven marine propulsion systems using the Yanmar 4LV series, this angle gear maintains the specified 1.67 reduction ratio and right-hand rotation without unverifiable performance claims. The M-Shift configuration denotes mechanical shift control compatibility typical of select 4LV installations, and the unit aligns with original equipment specifications for “marine gearbox for sailboats / powerboats” and “OEM Yanmar marine propulsion component.”

This Yanmar KMH50A-3 RR 1.67 for 4LV Series (M-Shift) – KMH50A-3 167 4LV is suitable for replacement during scheduled maintenance, engine repower work, or new installations requiring a compatible angle reduction gear to support reliable torque delivery and proper propeller drive integration.